[计] multilayer PC board, multilayer PCB, multilayer printed board, multilayer printed circuit board

duō céng yìn zhì diàn lù bǎn ㄉㄨㄛ ㄘㄥˊ ㄧㄣˋ ㄓˋ ㄉㄧㄢˋ ㄌㄨˋ ㄅㄢˇ